Plugin not working with Woo Discount Rules

Hi,

We are evaluating your plugin PPOM for one of our project. Free version is good but we would like to provide image options to user and for that we need paid version.

We want to use this plugin along with another plugin for Qty Based discount (Plugin Name: Woo Discount Rules) .

But free version itself is not working with this plugin.

Here is the Page we are testing:
https://dev2.minapansuriya.com/product/the-colorado-cheyenne-tipi/

Looking forward to hear, so that we can complete our project faster.

Thank you in advance.

The page I need help with: [log in to see the link]